Sony Cyber-shot WX5 - Test shots: ISO performance

A selection of images taken at the camera's incremental light sensitivity settings, using only available daylight.

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Shooting with the WX5 set to Auto ISO, it has chosen a setting equivalent to ISO320 to competently do the job and deliver a result free of noise.

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The WX5's first manually selectable setting is ISO125 equivalent.

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Same framing at ISO200 and a barely discernible difference for noise/grain.

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We're at ISO400, usually the setting at which noise begins to creep in on if we're unlucky. Here grain is hidden by a slight softening of detail.

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Matters start to go downhill at ISO800 with both softened detail and noise creeping in to shadow areas on close inspection.

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A distinctly gritty look across the entirety of the image at ISO1600, even when viewed full frame. But, conversely, this has the effect of slightly sharpening up the image's soft edges.

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The same is true of the top ISO3200 setting. More grain has resulted in a sharper edged look overall. But we'd prefer to stick below ISO400 for a completely clean bill of health, so not the most impressive low light showing ever from the WX5.

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